<div id="testo" style="font-size:14pt;position:relative;">&amp;nbsp;</div>
<script>
function scrivi(str) {
if(document.layers) {
document.layers["testo"].document.write("<div id=\"testo\" style=\"font-size:14pt;position:relative;\">"+str+"</div>");
document.layers["testo"].document.close();
}
else if(document.all && !document.getElementById)
document.all["testo"].innerHTML=str;
else if(document.getElementById)
document.getElementById("testo").innerHTML=str;
}
</script>
<form>
<input type="button" value="bottone 1" onclick="scrivi('ciao');">
<input type="button" value="bottone 2" onclick="scrivi('buongiorno');">
</form>